Fuel cost calculator · About 810 miles
Gas cost from Seattle to San Francisco
The drive from Seattle, WA to San Francisco, CA is about 810 miles, so a round trip costs about $292.76 in gas at this week's average of $5.42 a gallon. Change the car, fuel or distance below for your own figure.
What the trip costs by vehicle
| Vehicle | One way | Round trip |
|---|---|---|
| Compact car (33 mpg) | $133.07 | $266.15 |
| Midsize sedan (30 mpg) | $146.38 | $292.76 |
| Hybrid (50 mpg) | $87.83 | $175.66 |
| Minivan (22 mpg) | $199.61 | $399.22 |
| SUV (24 mpg) | $182.98 | $365.95 |
| Pickup truck (19 mpg) | $231.13 | $462.25 |
Regular gas at $5.422 a gallon, the average of this week's Washington and California prices, from the EIA’s weekly survey. Fuel only: tolls and parking are not included.
Fuel economy figures are round examples for each kind of vehicle, not official ratings. Your own car's EPA rating is on fueleconomy.gov.
Distance: fastest route between city centres, rounded to the nearest 5 miles, calculated with OSRM on OpenStreetMap road data (© OpenStreetMap contributors), measured November 2026.
810 miles in Washington
$146.34
27 gallons at $5.42 a gallon
$34.21 more than the same trip at the national average.
- Per mile
- 18.1¢
- A full tank
- $81.30
- about 450 miles
- A year of driving
- $2,168
- $181 a month
Where to fill up
Regular is about $0.65 a gallon cheaper in Washington than in California this week, $9.80 on a 15-gallon fill. Fill the tank on the Washington side of the trip. See how Washington’s gas tax compares.
Seattle to San Francisco by car
- How much does gas cost from Seattle to San Francisco?
- About $146.38 one way, or $292.76 for the round trip, in a car that gets 30 mpg. That assumes 810 miles and this week's average regular price of $5.42 a gallon. An SUV at 24 mpg spends about $182.98 one way; a hybrid at 50 mpg about $87.83.
- How far is Seattle from San Francisco by car?
- About 810 miles on the fastest route between the two city centres, measured on OpenStreetMap road data. Your own start and end points may make it a little longer or shorter; type your distance into the calculator for an exact figure.
- How many gallons of gas does the drive take?
- About 27.0 gallons one way at 30 mpg. That is more than a typical 15-gallon tank, so plan on at least 2 fuel stops.
- Is gas cheaper in Washington or California?
- This week regular is about $0.65 a gallon cheaper in Washington, which is $9.80 on a 15-gallon fill. About 13¢ of that gap is state fuel tax. Filling up before you leave Washington saves the most.